package com.example.xd.defaultcall.test;

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.ValueAnimator;
import android.view.View;
import android.view.ViewPropertyAnimator;
import android.view.animation.Interpolator;

import androidx.core.view.animation.PathInterpolatorCompat;

/**
 * @auther XuDan on 2020/6/29.
 */
public class AnimUtils {

    public static final int DEFAULT_DURATION = -1;
    public static final int NO_DELAY = 0;

    public static final Interpolator EASE_IN = PathInterpolatorCompat.create(0.0f, 0.0f, 0.2f, 1.0f);
    public static final Interpolator EASE_OUT = PathInterpolatorCompat.create(0.4f, 0.0f, 1.0f, 1.0f);
    public static final Interpolator EASE_OUT_EASE_IN =
            PathInterpolatorCompat.create(0.4f, 0, 0.2f, 1);

    public static void crossFadeViews(View fadeIn, View fadeOut, int duration) {
        fadeIn(fadeIn, duration);
        fadeOut(fadeOut, duration);
    }

    public static void fadeOut(View fadeOut, int duration) {
        fadeOut(fadeOut, duration, null);
    }

    public static void fadeOut(final View fadeOut, int durationMs, final AnimationCallback callback) {
        fadeOut.setAlpha(1);
        final ViewPropertyAnimator animator = fadeOut.animate();
        animator.cancel();
        animator
                .alpha(0)
                .withLayer()
                .setListener(
                        new AnimatorListenerAdapter() {
                            @Override
                            public void onAnimationEnd(Animator animation) {
                                fadeOut.setVisibility(View.GONE);
                                if (callback != null) {
                                    callback.onAnimationEnd();
                                }
                            }

                            @Override
                            public void onAnimationCancel(Animator animation) {
                                fadeOut.setVisibility(View.GONE);
                                fadeOut.setAlpha(0);
                                if (callback != null) {
                                    callback.onAnimationCancel();
                                }
                            }
                        });
        if (durationMs != DEFAULT_DURATION) {
            animator.setDuration(durationMs);
        }
        animator.start();
    }

    public static void fadeIn(View fadeIn, int durationMs) {
        fadeIn(fadeIn, durationMs, NO_DELAY, null);
    }

    public static void fadeIn(
            final View fadeIn, int durationMs, int delay, final AnimationCallback callback) {
        fadeIn.setAlpha(0);
        final ViewPropertyAnimator animator = fadeIn.animate();
        animator.cancel();

        animator.setStartDelay(delay);
        animator
                .alpha(1)
                .withLayer()
                .setListener(
                        new AnimatorListenerAdapter() {
                            @Override
                            public void onAnimationStart(Animator animation) {
                                fadeIn.setVisibility(View.VISIBLE);
                            }

                            @Override
                            public void onAnimationCancel(Animator animation) {
                                fadeIn.setAlpha(1);
                                if (callback != null) {
                                    callback.onAnimationCancel();
                                }
                            }

                            @Override
                            public void onAnimationEnd(Animator animation) {
                                if (callback != null) {
                                    callback.onAnimationEnd();
                                }
                            }
                        });
        if (durationMs != DEFAULT_DURATION) {
            animator.setDuration(durationMs);
        }
        animator.start();
    }

    /**
     * Scales in the view from scale of 0 to actual dimensions.
     *
     * @param view         The view to scale.
     * @param durationMs   The duration of the scaling in milliseconds.
     * @param startDelayMs The delay to applying the scaling in milliseconds.
     */
    public static void scaleIn(final View view, int durationMs, int startDelayMs) {
        AnimatorListenerAdapter listener =
                (new AnimatorListenerAdapter() {
                    @Override
                    public void onAnimationStart(Animator animation) {
                        view.setVisibility(View.VISIBLE);
                    }

                    @Override
                    public void onAnimationCancel(Animator animation) {
                        view.setScaleX(1);
                        view.setScaleY(1);
                    }
                });
        scaleInternal(
                view,
                0 /* startScaleValue */,
                1 /* endScaleValue */,
                durationMs,
                startDelayMs,
                listener,
                EASE_IN);
    }

    /**
     * Scales out the view from actual dimensions to 0.
     *
     * @param view       The view to scale.
     * @param durationMs The duration of the scaling in milliseconds.
     */
    public static void scaleOut(final View view, int durationMs) {
        AnimatorListenerAdapter listener =
                new AnimatorListenerAdapter() {
                    @Override
                    public void onAnimationEnd(Animator animation) {
                        view.setVisibility(View.GONE);
                    }

                    @Override
                    public void onAnimationCancel(Animator animation) {
                        view.setVisibility(View.GONE);
                        view.setScaleX(0);
                        view.setScaleY(0);
                    }
                };

        scaleInternal(
                view,
                1 /* startScaleValue */,
                0 /* endScaleValue */,
                durationMs,
                NO_DELAY,
                listener,
                EASE_OUT);
    }

    private static void scaleInternal(
            final View view,
            int startScaleValue,
            int endScaleValue,
            int durationMs,
            int startDelay,
            AnimatorListenerAdapter listener,
            Interpolator interpolator) {
        view.setScaleX(startScaleValue);
        view.setScaleY(startScaleValue);

        final ViewPropertyAnimator animator = view.animate();
        animator.cancel();

        animator
                .setInterpolator(interpolator)
                .scaleX(endScaleValue)
                .scaleY(endScaleValue)
                .setListener(listener)
                .withLayer();

        if (durationMs != DEFAULT_DURATION) {
            animator.setDuration(durationMs);
        }
        animator.setStartDelay(startDelay);

        animator.start();
    }

    /**
     * Animates a view to the new specified dimensions.
     *
     * @param view      The view to change the dimensions of.
     * @param newWidth  The new width of the view.
     * @param newHeight The new height of the view.
     */
    public static void changeDimensions(final View view, final int newWidth, final int newHeight) {
        ValueAnimator animator = ValueAnimator.ofFloat(0f, 1f);

        final int oldWidth = view.getWidth();
        final int oldHeight = view.getHeight();
        final int deltaWidth = newWidth - oldWidth;
        final int deltaHeight = newHeight - oldHeight;

        animator.addUpdateListener(
                new ValueAnimator.AnimatorUpdateListener() {
                    @Override
                    public void onAnimationUpdate(ValueAnimator animator) {
                        Float value = (Float) animator.getAnimatedValue();

                        view.getLayoutParams().width = (int) (value * deltaWidth + oldWidth);
                        view.getLayoutParams().height = (int) (value * deltaHeight + oldHeight);
                        view.requestLayout();
                    }
                });
        animator.start();
    }

    public static class AnimationCallback {

        public void onAnimationEnd() {
        }

        public void onAnimationCancel() {
        }
    }
}
